Tadaoka, a man in his twenties living in Shinjuku, navigates life through multiple personas. By day he works as a regular employee at an IT firm; by night he performs as "Utacho" at a cross-dressing café in Shinjuku, while running an anonymous account on a dating app as "Taicho," drawing in straight men. Written in the vernacular of the internet, the novel follows one month leading up to the end of the rainy season as an elusive "I" relentlessly searches for identity in Reiwa-era Tokyo. Winner of the 40th Dazai Osamu Award.

The author's relentless precision in illuminating a formless 'I' through language is enough to make the reader feel unhinged. Nothing happens and yet the birth of this novel is itself an event.